Display panel and display device

Abstract

The present invention provides a display panel and a display device. The display panel includes a transparent substrate and a polyimide (PI) substrate. The PI substrate is placed at one side of the transparent substrate. An uneven structure is provided inside the PI substrate or arranged on one side of the PI substrate facing the transparent substrate.

What is claimed is: 
     
       1. A display device, comprising a display panel and a camera, the display panel comprising:
 a transparent substrate; and 
 a polyimide (PI) substrate disposed at one side of the transparent substrate, wherein an uneven structure is provided inside the PI substrate, wherein the PI substrate comprises a first PI film layer and a second PI film layer, the first PI film layer is disposed at one side adjacent to the transparent substrate, the second PI film layer is disposed at one side away from the transparent substrate, a refractive index of the first PI film layer is n1, a refractive index of the second PI film layer is n2, and n1<n2, 
 wherein the first PI film layer is provided with a first protrusion structure, the second PI film layer is provided with a second protrusion structure, the uneven structure comprises the first protrusion structure and the second protrusion structure, and the first protrusion structure and the second protrusion structure are engaged and attached to each other at an interface between the first PI film layer and the second PI film layer, 
 wherein the first protrusion structure comprises a plurality of first protrusions, the second protrusion structure comprises a plurality of second protrusions, and a width of each of the first protrusions is less than a width of each of the second protrusions, 
 wherein the camera is disposed under the PI substrate and the transparent substrate at a distance. 
 
     
     
       2. The display device according to  claim 1 , wherein a refractive index of the first PI film layer is n1, and 1.5≤n1≤1.8. 
     
     
       3. The display device according to  claim 1 , wherein a refractive index of the second PI film layer is n2, and n2≥1.8. 
     
     
       4. The display device according to  claim 1 , wherein an auxiliary uneven structure is arranged on the one side of the PI substrate facing the transparent substrate, the uneven structure is a recessed cone-like structure. 
     
     
       5. The display device according to  claim 1 , wherein nanoparticles are doped in the PI substrate. 
     
     
       6. The display device according to  claim 1 , wherein nanoparticles are doped in the first PI film layer. 
     
     
       7. The display device according to  claim 5 , wherein the nanoparticles comprise at least one of ZnO, TiO 2 , ZrO 2 , SiO 2 , or MgO.